<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>推送链接</title>
	 <script type="text/javascript" src="http://web.mcooz.com/js/jquery-1.11.1.min.js"></script>     
</head>
<body>
<style>
.sdf {
  float: left;
  width: 1000px;
}	

</style>
<script type="text/javascript">
	 $(function()
        {
$("#a").on("click", function(){
$(".sdf").val('');
});

$(".sdf").click(function(){
    this.select();
});

        });

</script>

<form action="<{:U('index/tui')}>" method="post" target="_blank">
<input class="sdf" type="text" name="u">

<input type="submit">

<input type="button" id="a" value="清空">











</form>
	
</body>
</html>